On Form 1040, your federal refund appears on Line 34, in the “Refund” section near the bottom of page 2. That line is the overpayment the IRS owes you: what you paid in during the year minus what you actually owed.
How Line 34 Is Calculated
Line 34 is a subtraction, and the form walks you through both numbers first.
Line 24 is your total tax. It combines the tax on your income with any additional taxes, such as self-employment tax from Schedule 2, after nonrefundable credits reduce your bill (but not below zero).1Internal Revenue Service. Form 1040 (2025)
Line 33 is your total payments. It adds up federal income tax withheld from paychecks and other income (Line 25d), estimated tax payments (Line 26), and refundable credits (Line 32), including the Earned Income Tax Credit and Additional Child Tax Credit.1Internal Revenue Service. Form 1040 (2025)
If Line 33 is larger than Line 24, the difference lands on Line 34 as your overpayment. If Line 24 is larger, you don’t have a refund at all; the balance due shows up on Line 37 instead.1Internal Revenue Service. Form 1040 (2025)
Because refundable credits flow into Line 33, they can push Line 34 above zero even when you owed nothing to begin with. A household that owed $500 in tax and qualifies for $3,000 in refundable credits ends up with a $2,500 refund on Line 34.
Telling the IRS What to Do With the Overpayment
The lines just below Line 34 collect your instructions.
Line 35a is the amount you want refunded to you. Lines 35b through 35d capture your bank’s routing number, account type, and account number for direct deposit.2Internal Revenue Service. Form 1040 Instructions (2025) If you leave the direct deposit lines blank, the IRS mails a paper check to the address on your return.
You don’t have to take the whole overpayment as cash. Line 36 lets you apply part or all of Line 34 to next year’s estimated tax, which is useful if you’re self-employed or expect to owe next April.2Internal Revenue Service. Form 1040 Instructions (2025) Whatever you put on Line 36 reduces what shows up on Line 35a.
Splitting the Refund Across Accounts
To send the refund to more than one account, check the box on Line 35a and attach Form 8888. That form splits a refund across up to three accounts at U.S. financial institutions, including checking, savings, IRA, and health savings accounts. Each deposit must be at least $1, and the total allocated on Form 8888 must exactly match the refund on your return. If those numbers don’t match, the IRS may ignore the split and deposit everything into the first account listed.3Internal Revenue Service. About Form 8888, Allocation of Refund
When the Number You Wrote Isn’t the Number You Get
Line 34 is what you calculated. It isn’t always what hits your account.
Math Error Corrections
If the IRS finds a mistake, it recalculates and sends a CP12 notice with the new refund amount. Agree, and you don’t need to do anything. Disagree, and you have to call the number on the notice by the printed deadline. Missing that deadline costs you the formal right to have the change reversed and the right to appeal to the U.S. Tax Court, although the IRS will still consider supporting documents submitted later.4Internal Revenue Service. Understanding Your CP12 Notice
Treasury Offsets
Through the Treasury Offset Program, the government intercepts refunds to collect past-due federal tax, state income tax, child support, spousal support, student loans, and other federal or state debts.2Internal Revenue Service. Form 1040 Instructions (2025) The program recovered more than $3.8 billion in fiscal year 2024.5Bureau of the Fiscal Service. Treasury Offset Program When an offset happens, the IRS sends a CP49 notice explaining what was taken and why. If you filed jointly and the debt belongs only to your spouse, you can claim your share by filing Form 8379, Injured Spouse Allocation.6Internal Revenue Service. Understanding Your CP49 Notice
Where the Refund Sits on an Amended Return
The line number changes if you file Form 1040-X. On an amended return, your overpayment appears on Line 22, not Line 34.7Internal Revenue Service. Form 1040-X (Rev. December 2025) Amended returns also take considerably longer to process than original returns, often 16 weeks or more.